How to drag and drop texbBox text to treeviewadv control between two forms?

this.treeViewAdv1.AllowDrop = true;

this.treeViewAdv1.DragEnter += TreeViewAdv1_DragEnter;

this.treeViewAdv1.DragDrop += new DragEventHandler(treeViewAdv1_DragDrop);

private void TreeViewAdv1_DragEnter(object sender, DragEventArgs e)

{

      e.Effect = DragDropEffects.Copy;

}

private void treeViewAdv1_DragDrop(object sender, DragEventArgs e)

{

     TreeNodeAdv node = new TreeNodeAdv();

     if (e.Data.GetDataPresent(DataFormats.Text))

     {

            Point pt = ((TreeViewAdv)sender).PointToClient(new Point(e.X, e.Y));

            TreeNodeAdv dn = ((TreeViewAdv)sender).GetNodeAtPoint(pt);

            node = new TreeNodeAdv(e.Data.GetData(DataFormats.Text).ToString());

            dn.Nodes.Add(node);

            dn.Expand();

     }

}

Me.treeViewAdv1.AllowDrop = True

AddHandler Me.treeViewAdv1.DragEnter, AddressOf TreeViewAdv1_DragEnter

AddHandler treeViewAdv1.DragDrop, AddressOf treeViewAdv1_DragDrop

private void TreeViewAdv1_DragEnter(Object sender, DragEventArgs e)

      e.Effect = DragDropEffects.Copy

private void treeViewAdv1_DragDrop(Object sender, DragEventArgs e)

      Dim node As New TreeNodeAdv()

      If e.Data.GetDataPresent(DataFormats.Text) Then

            Dim pt As Point = (CType(sender, TreeViewAdv)).PointToClient(New Point(e.X, e.Y))

            Dim dn As TreeNodeAdv = (CType(sender, TreeViewAdv)).GetNodeAtPoint(pt)

            node = New TreeNodeAdv(e.Data.GetData(DataFormats.Text).ToString())

            dn.Nodes.Add(node)

            dn.Expand()

      End If